The patients will be recruited at the outpatient clinic appointment. Those willing to participate will complete the questionnaire independently and return the questionnaire by mail in a pre-paid envelope. Furthermore, relevant information about the diagnosis/classification of ulcer, comorbidities, the ulcer management and pain management will be collected in a clinical examination, and by talking to the participants. The clinical examination will take place in relation to already scheduled dressing-change, in order to minimize the burden of participating in the study.